BenQ MP770 user manual Plug the power cord into the AC inlet on, Make sure that it is switched on

Troubleshooting

The projector does not turn on.

Cause	Remedy
	Plug the power cord into the AC inlet on the
There is no power from the power	projector, and plug the power cord into the
cable.	power outlet. If the power outlet has a switch,
	make sure that it is switched on.
Attempting to turn the projector on	Wait until the cooling down process has
again during the cooling process.	completed.

No picture

Cause	Remedy
The video source is not turned on or	Turn the video source on and check that the
connected correctly.	signal cable is connected correctly.
The projector is not correctly	Check the connection.
connected to the input source device.
The input signal has not been	Select the correct input signal with the Source
correctly selected.	key on the projector or remote control.
The lens cap is still attached to the	Remove the lens cap.
lens.
The digital video source connected to	Connect using an analog input instead, such
the DVI input may be HDCP-	as Component Video, S-Video, or composite
compliant.	Video.

Blurred image

Cause	Remedy
The projection lens is not correctly	Adjust the focus of the lens using the focus
focused.	ring.
The projector and the screen are not	Adjust the projection angle and direction as
aligned properly.	well as the height of the unit if necessary.
The lens cap is still attached to the	Remove the lens cap.
lens.

Remote control does not work

Cause	Remedy
The batteries are out of power.	Replace the batteries with new ones.
There is an obstacle between the	Remove the obstacle.
remote control and the projector.
You are too far away from the	Stand within 6 meters (19.5 feet) of the
projector.	projector.

62 Troubleshooting